Preparation of the app for Apple Store and Google Play

During the creation of screenshots, I remembered the various requirements of the stores.

for the App Store

Screenshots must be in JPG or PNG format.
Screens are placed under the types of devices for which the app is available:

iPhone 6, 5 inches – 1242 x 2688 pixels
iPhone 5, 5 inches – 1242 x 2208 pixels

For Google Play

At least four screenshots (max. 8) with a resolution of 1080 pixels are required.
The format for horizontal screenshots is 16:9 (at least 1920 x 1080 pixels), and for vertical screenshots is 9:16 (at least 1080 x 1920 pixels).